I don't know if you heard this but there was some actor (I can't remember his name right now, it might show up on google if you search Infamous 2) who posted on his twitter a while ago that he was "doing an auidtion for a videogame, as the lead role of Cole in inFamous 2." Sony never commented on it and the actor removed the post soon after. Other than that, I'[ve been following Sucker Punch closely and there doesn't seem to be any news on a sequel.